Planning of dental implant size with digital panoramic radiographs, CBCT-generated panoramic images, and CBCT cross-sectional images

2013 ◽  
Vol 25 (6) ◽  
pp. 690-695 ◽  
Author(s):  
Leticia Ruhland Correa ◽  
Rubens Spin-Neto ◽  
Andreas Stavropoulos ◽  
Lars Schropp ◽  
Heloísa Emília Dias da Silveira ◽  
...  
Keyword(s):  
Dental Implant ◽  
Cross Sectional ◽  
Panoramic Radiographs ◽  
Panoramic Images ◽  
Implant Size

scholarly journals Natural variations in the appearance and the positions of the mental foramen in a selected population of Karachi (Pakistan).

2020 ◽  
Vol 27 (06) ◽  
pp. 1267-1274
Author(s):  
Sara Fatima ◽  
Arfa Baig ◽  
Aeman Ali
Keyword(s):  
Longitudinal Axis ◽  
Mental Foramen ◽  
Cross Sectional Study ◽  
Health Sciences ◽  
Radiology Department ◽  
Cross Sectional ◽  
Panoramic Radiographs ◽  
Panoramic Images ◽  
Posterior Position ◽  
Anterior Posterior

Objectives: The purpose of this study is to evaluate the most common appearance, horizontal and vertical positions of the mental foramen (MF), using the panoramic radiographs in a selected population of Karachi (Pakistan). As this is relevant to consider prior to plan any maxillofacial surgical procedures in order to avoid nerve injuries. Study Design: Cross-sectional study. Setting: Radiology Department of the Dr. Ishrat ul Ebad khan institute of oral health sciences (Dow University of Health Sciences). Period: 25th September to 5th November 2018. Material & Methods: Total 500 panoramic images were assessed. The study was divided in to the two group i.e. male and female adult patients in which the appearance, anterior-posterior positions and the superior-inferior positions of the MF was analyzed on the panoramic radiographs. Results: Total 500 OPG were accessed, the age ranges between 12 years to 73 years, 229 were male, 271 were females, and majority of MF were separated type (n=341, 68.2%) on right side and (n=373, 74.6%) on left side. And the most common superio-inferior position of the MF on both sides were position 2 (below the level of apices of 1st and 2nd premolar) on right side (n=387, 77.4%) and on left side (n=376, 75.2%), and the most common anterio-posterior position of the MF on both the right and left side is position 4 ( M.F lies in the line of 2nd premolars), on right side (n=269, 53.8%) and on left side (n=255, 51%). Conclusion: In this study the “separated type” was the most common type of appearance in both genders and the most frequent superio-inferior position of the MF is below the level of apices of 1st and 2nd premolar on both right and left sides. And the most common anterior-posterior position is within the line of longitudinal axis of 2nd premolar on both sides.

Artificial intelligence system for automatic deciduous tooth detection and numbering in panoramic radiographs

2021 ◽  
pp. 20200172
Author(s):  
Münevver Coruh Kılıc ◽  
Ibrahim Sevki Bayrakdar ◽  
Özer Çelik ◽  
Elif Bilgir ◽  
Kaan Orhan ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Deep Learning ◽  
Confusion Matrix ◽  
Forensic Identification ◽  
Deciduous Teeth ◽  
Time Saving ◽  
Panoramic Radiographs ◽  
Intelligence System ◽  
Promising Tool ◽  
Panoramic Images

Objective: This study evaluated the use of a deep-learning approach for automated detection and numbering of deciduous teeth in children as depicted on panoramic radiographs. Methods and materials: An artificial intelligence (AI) algorithm (CranioCatch, Eskisehir-Turkey) using Faster R-CNN Inception v2 (COCO) models were developed to automatically detect and number deciduous teeth as seen on pediatric panoramic radiographs. The algorithm was trained and tested on a total of 421 panoramic images. System performance was assessed using a confusion matrix. Results: The AI system was successful in detecting and numbering the deciduous teeth of children as depicted on panoramic radiographs. The sensitivity and precision rates were high. The estimated sensitivity, precision, and F1 score were 0.9804, 0.9571, and 0.9686, respectively. Conclusion: Deep-learning-based AI models are a promising tool for the automated charting of panoramic dental radiographs from children. In addition to serving as a time-saving measure and an aid to clinicians, AI plays a valuable role in forensic identification.

Mapping of a multilayer panoramic radiography device

2021 ◽  
Author(s):  
Luciano Augusto Cano Martins ◽  
Eduarda Helena Leandro Nascimento ◽  
Hugo Gaêta-Araujo ◽  
Matheus L Oliveira ◽  
Deborah Queiroz Freitas
Keyword(s):  
Exposure Time ◽  
Panoramic Radiography ◽  
Anterior Region ◽  
Panoramic Image ◽  
Panoramic Radiographs ◽  
Acrylic Plate ◽  
Panoramic Images ◽  
Maxilla And Mandible ◽  
Distortion Rate

Objective: To map the shape, location, and thickness of the focal trough of a panoramic radiography device with a multilayer imaging program. Methods: An acrylic plate (148 × 148 × 3 mm) containing 1156 holes distributed in a matrix of 34 × 34 rows was placed in the OP300 Maxio at the levels of the maxilla and mandible. 20 metal spheres (3.5 mm in diameter) were placed on the holes of the plate under 15 different arrangements and panoramic images were acquired for each arrangement at 66 kV, 8 mA, and an exposure time of 16 s. The resulting panoramic radiographs from the five image layers were exported, the horizontal and vertical dimensions of the metal spheres were measured in all images using the Image J software, and the magnification and distortion rates of the spheres were calculated. All metal spheres presenting a magnification rate lower than 30% in both vertical and horizontal dimensions and a distortion rate lower than 10% were considered to map the focal troughs of each of the five image layers. Results: All panoramic image layers had a curved shape ranging from 39° to 51° for both dental arches and varied in position and thickness. The anterior region of maxilla was anteriorly displaced when compared to the anterior region of the mandible for all layers. Image layers are thicker at the level of the mandible than those at the level of the maxilla; also, inner layers were thinner and outer layers were thicker. Conclusion All image layers in the studied panoramic radiography device had a curved shape and varied in position and thickness. The anterior region of maxilla was anteriorly displaced when compared to that of the mandible for all layers.

scholarly journals Awareness Regarding Implant Supported Dental Prosthesis; A Survey In Tertiary Care Set Up

2018 ◽  
Vol 08 (04) ◽  
pp. 250-253
Author(s):  
Anum Baqar ◽  
Saman Hakeem ◽  
Farnaz Ilyas ◽  
Abid Mohsin ◽  
Fatima Hassan ◽  
...  
Keyword(s):  
Dental Implant ◽  
Tertiary Care ◽  
Limiting Factor ◽  
Cross Sectional Survey ◽  
Tertiary Care Centre ◽  
Cross Sectional ◽  
Dental Hospital ◽  
Set Up ◽  
Systemic Health ◽  
Implant Treatment

Objective: This research was aimed to assess the awareness and attitude regarding implant-retained prosthesis as the most advanced option for tooth replacement amongst residents of Karachi visiting tertiary care centre. Methodology: This cross-sectional survey was conducted in the department of Prosthodontics at Bahria University Dental Hospital, Karachi. Undertaking the demographic characteristics of patients, the objective was to determine the awareness and attitude toward implant supported prosthesis. Results: Amongst 380 responses retrieved, 9.8% of respondents were aware about the dental implant treatment. While correlating awareness with demographics features, awareness statistically increased with educational level (p= 0.00) and occupational category(p=0.01) of the participants. The friends and relative s(40.5%) were the main source of information regarding dental implant treatment modality. 54.1% were unwilling to undergo treatment with dental implant whereas high cost (55.2%)was the major limiting factor for implant treatment. 64.9% demanded dental insurance for getting the treatment. 45.9% had no knowledge regarding maintenance of implant supported prosthesis .73.0% had no idea regarding longevity of dental implant where as 86.5% were unaware of it’s impact on systemic health. Conclusion: The overall awareness regarding implant supported prosthesis was found to be minimal. This underlines the need of efforts and measures that should be made to raise the awareness and thus alter attitude towards dental implant therapy. Expensive rates (55.2%) was found to be the major limiting factor that should be relieved in the form of health insurance policies, especially in the developing countries like ours.

Software used to predict implant size from digital panoramic radiographs

2005 ◽  
Vol 1281 ◽  
pp. 1414
Author(s):  
E. Gotfredsen ◽  
L. Schropp ◽  
A. Wenzel
Keyword(s):  
Panoramic Radiographs ◽  
Implant Size

scholarly journals Development of cleft children’s permanent canines

2019 ◽  
Vol 67 ◽  
Author(s):  
Manoel Itaguacy Leite NOVAIS JUNIOR ◽  
Manuella Santos Carneiro ALMEIDA ◽  
Camila Helena Machado da COSTA ◽  
Tassia Cristina de Almeida Pinto SARMENTO ◽  
Luis Ferreira de SOUSA FILHO ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Tooth Development ◽  
Cross Sectional Study ◽  
Control Group ◽  
Case Group ◽  
Age Difference ◽  
Cross Sectional ◽  
Panoramic Radiographs ◽  
Significant Difference

ABSTRACT Objective: Evaluating the development of the permanent cuspids in children from Paraíba with cleft lip and palate applying the Nolla and the Demirjian methods. Methods: A cross-sectional study using an inductive approach and applying a comparative statistical procedure and direct documentation research technique. The universe of the study consisted of children assisted at the orthodontic practice of the Brazilian Association of Dentistry - Paraíba Section. The sample comprised 72 pairs of panoramic radiographs of children with and without cleft lip and palate from the same gender and, age difference of up to 30 days, ranging from 5 to 13 years of age. The study has evaluated the development of 576 cuspids. The images were evaluated by three duly calibrated examiners concomitantly, and the calcification stages were determined by a consensus. The stages of the cuspids calcification were evaluated in the panoramic radiographs according to Nolla and Demirjian classifications. Results: The average of the calcification stage of teeth was correspondingly higher in the control group than in the case group, showing a development delay of the cuspid teeth in the cleft lip and palate patients. The lower cuspids were significantly more developed than the upper cuspids (p <0.001). There were no significant differences between the sides. There was early tooth development in females but without significant difference. Conclusion: It was possible to note that patients with cleft lip and palate presented a delay in the development of the permanent cuspids when compared to non-cleft lip and palate patients, thus, reinforcing the importance of the individualization of the orthodontic planning.

scholarly journals Antimicrobial Prescription Habits of Dentists Performing Dental Implant Treatments in Santo Domingo, Dominican Republic

Antibiotics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 376
Author(s):  
Juan Manuel Aragoneses ◽  
Javier Aragoneses ◽  
Vanessa Arlette Brugal ◽  
Juan Algar ◽  
Ana Suarez
Keyword(s):  
Dominican Republic ◽  
Dental Implant ◽  
Preoperative Period ◽  
Santo Domingo ◽  
Recommended Dosage ◽  
Self Assessment ◽  
Cross Sectional ◽  
Before And After ◽  
The Subject ◽  
Antimicrobial Prescription

The use of antibiotics in implant treatments is controversial. The purpose of this research was to study the behaviors of Santo Domingo dentists who prescribe antimicrobials to patients for the placement of dental implants. A total of 99 dentists participated in the study. A share of 1.2% of dentists prescribed antimicrobials solely in the preoperative period, 8.6% after surgery, 44.4% before and after, 19.8% only in specific situations, and 25.9% did not prescribe at all. Amoxicillin was the predominant antimicrobial of choice. A cross-sectional, observational, survey-based study was conducted. The items studied were demographics, self-assessment of knowledge about antibiotics and when they are used, as well as their recommended dosage and duration, in healthy and non-allergic patients. Notable variability was found in the prescription behaviors of antimicrobials. Bridging gaps in knowledge on the subject could help to standardize prescription guidelines.

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